forked from k-space/kube
259 lines
7.0 KiB
YAML
259 lines
7.0 KiB
YAML
---
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apiVersion: monitoring.coreos.com/v1
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kind: Probe
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metadata:
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name: websites
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spec:
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prober:
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url: blackbox-exporter
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path: /probe
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module: http_2xx
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targets:
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staticConfig:
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static:
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- https://git.k-space.ee/
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- https://grafana.k-space.ee/
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- https://wiki.k-space.ee/
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- https://pad.k-space.ee/
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- https://members.k-space.ee/
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- https://nextcloud.k-space.ee/
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- http://minio.infra.k-space.ee:9001/login
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---
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apiVersion: monitoring.coreos.com/v1
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kind: Probe
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metadata:
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name: k6.ee
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spec:
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prober:
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url: blackbox-exporter
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path: /probe
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module: dns_check_traefik
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targets:
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staticConfig:
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static:
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- 193.40.103.2
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- 62.65.250.2
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---
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apiVersion: monitoring.coreos.com/v1
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kind: Probe
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metadata:
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name: samba-cluster
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spec:
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prober:
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url: blackbox-exporter
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path: /metrics
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module: tcp_connect
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targets:
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staticConfig:
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static:
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- dc1.ad.k-space.ee:636
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- dc2.ad.k-space.ee:636
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- dc3.ad.k-space.ee:636
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---
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apiVersion: monitoring.coreos.com/v1
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kind: Probe
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metadata:
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name: misc
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spec:
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prober:
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url: blackbox-exporter
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path: /metrics
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module: tcp_connect
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targets:
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staticConfig:
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static:
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- mail.k-space.ee:465
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- dev.k-space.ee:10648
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- mariadb.infra.k-space.ee:3306
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---
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apiVersion: monitoring.coreos.com/v1
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kind: PrometheusRule
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metadata:
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name: blackbox-exporter
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spec:
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# https://awesome-prometheus-alerts.grep.to/rules#blackbox
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groups:
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- name: blackbox
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rules:
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- alert: BlackboxProbeFailed
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expr: probe_success == 0
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for: 2m
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labels:
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severity: critical
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annotations:
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summary: Blackbox probe failed (instance {{ $labels.instance }})
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description: Probe failed
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- alert: BlackboxSlowProbe
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expr: avg_over_time(probe_duration_seconds[1m]) > 1
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for: 5m
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labels:
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severity: warning
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annotations:
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summary: Blackbox slow probe (instance {{ $labels.instance }})
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description: Blackbox probe took more than 1s to complete
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- alert: BlackboxSlowDNS
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expr: avg_over_time(probe_dns_lookup_time_seconds[1m]) > 1
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for: 5m
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labels:
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severity: warning
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annotations:
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summary: Blackbox slow DNS lookup (instance {{ $labels.instance }})
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description: Blackbox DNS lookup took more than 1s to complete.
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It seemed using IPv6 DNS servers in conjunction with Docker resulted
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in odd 5s latency bump. For now we're using 8.8.8.8 because of that
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- alert: BlackboxProbeHttpFailure
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expr: probe_http_status_code <= 199 OR probe_http_status_code >= 400
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for: 5m
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labels:
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severity: critical
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annotations:
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summary: Blackbox probe HTTP failure (instance {{ $labels.instance }})
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description: HTTP status code is not 200-399
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- alert: BlackboxSslCertificateWillExpireSoon
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expr: probe_ssl_earliest_cert_expiry - time() < 86400 * 30
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Blackbox SSL certificate will expire soon (instance {{ $labels.instance }})
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description: SSL certificate expires in 30 days
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- alert: BlackboxSslCertificateWillExpireSoon
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expr: probe_ssl_earliest_cert_expiry - time() < 86400 * 3
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for: 0m
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labels:
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severity: critical
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annotations:
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summary: Blackbox SSL certificate will expire soon (instance {{ $labels.instance }})
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description: SSL certificate expires in 3 days
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- alert: BlackboxSslCertificateExpired
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expr: probe_ssl_earliest_cert_expiry - time() <= 0
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for: 0m
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labels:
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severity: critical
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annotations:
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summary: Blackbox SSL certificate expired (instance {{ $labels.instance }})
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description: SSL certificate has expired already
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- alert: BlackboxProbeSlowHttp
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expr: avg_over_time(probe_http_duration_seconds[1m]) > 1
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for: 1m
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labels:
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severity: warning
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annotations:
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summary: Blackbox probe slow HTTP (instance {{ $labels.instance }})
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description: HTTP request took more than 1s
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- alert: BlackboxProbeSlowPing
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expr: avg_over_time(probe_icmp_duration_seconds[1m]) > 1
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for: 1m
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labels:
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severity: warning
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annotations:
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summary: Blackbox probe slow ping (instance {{ $labels.instance }})
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description: Blackbox ping took more than 1s
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: blackbox-exporter
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spec:
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revisionHistoryLimit: 0
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replicas: 3
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selector:
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matchLabels:
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app: blackbox-exporter
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template:
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metadata:
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labels:
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app: blackbox-exporter
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spec:
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containers:
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- name: blackbox-exporter
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image: prom/blackbox-exporter:v0.20.0
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volumeMounts:
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- name: blackbox-exporter-config
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mountPath: /etc/blackbox_exporter
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volumes:
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- name: blackbox-exporter-config
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configMap:
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name: blackbox-exporter-config
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# TODO: Results in odd 6s connection lag if scheduled in VLAN20
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nodeSelector:
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dedicated: monitoring
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tolerations:
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- key: dedicated
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operator: Equal
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value: monitoring
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effect: NoSchedule
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affinity:
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podAntiAffinity:
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requiredDuringSchedulingIgnoredDuringExecution:
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- labelSelector:
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matchExpressions:
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- key: app
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operator: In
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values:
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- blackbox-exporter
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topologyKey: "kubernetes.io/hostname"
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---
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kind: Service
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apiVersion: v1
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metadata:
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name: blackbox-exporter
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spec:
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type: ClusterIP
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ports:
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- name: http
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port: 80
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protocol: TCP
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targetPort: 9115
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selector:
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app: blackbox-exporter
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---
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: blackbox-exporter-config
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data:
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config.yml: |-
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modules:
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http_2xx:
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prober: http
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http:
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preferred_ip_protocol: "ip4"
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ip_protocol_fallback: false
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http_post_2xx:
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prober: http
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http:
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method: POST
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preferred_ip_protocol: "ip4"
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ip_protocol_fallback: false
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tcp_connect:
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prober: tcp
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tcp:
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preferred_ip_protocol: "ip4"
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ip_protocol_fallback: false
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icmp:
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prober: icmp
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icmp:
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preferred_ip_protocol: "ip4"
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ip_protocol_fallback: false
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dns_check_traefik:
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prober: dns
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dns:
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query_name: "traefik.k-space.ee"
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query_type: "A"
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validate_answer_rrs:
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fail_if_not_matches_regexp:
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- "traefik\\.k-space\\.ee\\.\\t.*\\tIN\\tA\\t193\\.40\\.103\\.[1-9][0-9]*"
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preferred_ip_protocol: "ip4"
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ip_protocol_fallback: false
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dns_check_k6:
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prober: dns
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dns:
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query_name: "k6.ee"
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query_type: "A"
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validate_answer_rrs:
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fail_if_not_matches_regexp:
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- "k6\\.ee\\.\\t.*\\tIN\\tA\\t193\\.40\\.103\\.[1-9][0-9]*"
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preferred_ip_protocol: "ip4"
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ip_protocol_fallback: false
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